Trekking backpack DEUTER Aircontact Core 40+10 – 40+10 L capacity, adjustable back system, cactus-ivy

DEUTER Aircontact Core 40+10 is a trekking backpack designed for multi-day hikes and travel. With a 40-litre main capacity plus a 10-litre extendable collar, this top-loader offers modular storage for clothing, food and equipment. The pack includes an adjustable back system to adapt torso length to the wearer, padded shoulder straps and a supportive hip belt to distribute weight, as well as multiple compartments and attachment points for tools, poles and a hydration system. The design balances load-carrying performance and user comfort for longer outdoor trips.

Advantages

The adjustable back system provides a customizable fit to improve comfort and posture while carrying heavy loads. The extendable top collar increases volume when needed without sacrificing organization. Padded shoulder straps and a contoured hip belt reduce pressure on shoulders and transfer load to the hips. Multiple external attachment points and compartments simplify access to frequently used items and allow secure stowage of trekking poles, tools and accessories.

Suitable for

• Multi-day trekking and backpacking trips
• Weekend hiking tours with variable packing volume
• Travel where a robust, ergonomic pack is required
• Outdoor activities needing external gear attachment (poles, ice axe, helmet)

Key specifications

• Capacity: 40 litres main volume plus 10 litres extendable collar
• Load adjustment: adjustable back system for varying torso lengths
• Carry system: padded shoulder straps and contoured hip belt for load distribution
• Access: top-loader design with extendable collar and multiple compartments
• Attachment: external gear loops and straps for poles and accessories
• Hydration: hydration system compatible (hose routing available)

How to use

Adjust the back system to match your torso length before loading the pack. Load heavy items close to the back and in the middle-upper section to maintain balance. Use the hip belt to transfer most of the weight onto your hips and tighten the shoulder straps and load lifters for a stable fit. Use external attachment points for trekking poles or bulky items and keep frequently used items in accessible compartments. The extendable collar increases usable volume when required; secure the collar when not in use to reduce movement of contents.

Usage recommendations

For extended hikes, fine-tune the back adjustment and hip belt fit with a moderate load and test walk before long treks. Distribute weight evenly, protect fragile items in inner compartments, and use compression straps to stabilize the load. Regularly check attachment points and zips for wear and avoid overloading beyond the recommended capacity to maintain comfort and prolong pack life.